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云西金矿床控矿构造是韧性剪切带。从宏观和微观论述了韧性剪切带构造组合特征,糜棱岩和显微构造特征。计算了韧性剪切带的剪应变值和差异应力。根据旋转应变及其他标志,确定本矿区两条韧性平移剪切带的剪切动向为右行剪切。并认为韧性剪剪切带构造控制着金矿化的分布和规模。
The ore-hosting structure of the Yunxi gold deposit is a ductile shear zone. The characteristics of ductile shear zone tectonic assemblages, mylonites and microstructures are discussed macroscopically and microscopically. The shear strain value and differential stress of ductile shear zone are calculated. According to the rotation strain and other marks, it is determined that the shear direction of the two ductile shear bands in the mine area is the right-hand shear. It is considered that the structure of ductile shear zone controls the distribution and scale of gold mineralization.